Children of married couples are more cognitively developed than children from single parent or co-habitation homes according to a study by the British Institute for Fiscal Studies.

But if you’re not married and you have a child, there’s no need to work yourself into a tizzy. The study found cognitive development has more to do with the parents’ education level than actual marital status.

Read the rest of the correlation between education, marriage and your child’s intelligence over at Your Tango.com.